If you cannot find the format that you require, you can convert various file formats on: 

   

 

Various ebook reader file formats: http://en.wikipedia.org/wiki/Comparison_of_e-book_formats

 

Mobi eBook file conversion: http://wiki.mobileread.com/wiki/E-book_conversion

 

Kindle file conversion: http://download.cnet.com/Auto-Kindle-eBook-Converter/3000-10743_4-10907625.html

 

Help and tips

 

http://www.teleread.com/drm/the-abcs-of-format-conversion-for-the-kindle-sony-and-nook-plus-some-calibre-tips/